[net-next-2.6.git] / arch / arm / Kconfig

#
# For a description of the syntax of this configuration file,
# see Documentation/kbuild/kconfig-language.txt.
#

mainmenu "Linux Kernel Configuration"

config ARM
	bool
	default y
	select RTC_LIB
	help
	  The ARM series is a line of low-power-consumption RISC chip designs
	  licensed by ARM Ltd and targeted at embedded applications and
	  handhelds such as the Compaq IPAQ.  ARM-based PCs are no longer
	  manufactured, but legacy ARM-based PC hardware remains popular in
	  Europe.  There is an ARM Linux project with a web page at
	  <http://www.arm.linux.org.uk/>.

config MMU
	bool
	default y

config EISA
	bool
	---help---
	  The Extended Industry Standard Architecture (EISA) bus was
	  developed as an open alternative to the IBM MicroChannel bus.

	  The EISA bus provided some of the features of the IBM MicroChannel
	  bus while maintaining backward compatibility with cards made for
	  the older ISA bus.  The EISA bus saw limited use between 1988 and
	  1995 when it was made obsolete by the PCI bus.

	  Say Y here if you are building a kernel for an EISA-based machine.

	  Otherwise, say N.

config SBUS
	bool

config MCA
	bool
	help
	  MicroChannel Architecture is found in some IBM PS/2 machines and
	  laptops.  It is a bus system similar to PCI or ISA. See
	  <file:Documentation/mca.txt> (and especially the web page given
	  there) before attempting to build an MCA bus kernel.

config GENERIC_HARDIRQS
	bool
	default y

config TRACE_IRQFLAGS_SUPPORT
	bool
	default y

config HARDIRQS_SW_RESEND
	bool
	default y

config GENERIC_IRQ_PROBE
	bool
	default y

config RWSEM_GENERIC_SPINLOCK
	bool
	default y

config RWSEM_XCHGADD_ALGORITHM
	bool

config GENERIC_HWEIGHT
	bool
	default y

config GENERIC_CALIBRATE_DELAY
	bool
	default y

config GENERIC_BUST_SPINLOCK
	bool

config ARCH_MAY_HAVE_PC_FDC
	bool

config GENERIC_ISA_DMA
	bool

config FIQ
	bool

config ARCH_MTD_XIP
	bool

config VECTORS_BASE
	hex
	default 0xffff0000 if MMU
	default DRAM_BASE if REMAP_VECTORS_TO_RAM
	default 0x00000000
	help
	  The base address of exception vectors.

source "init/Kconfig"

menu "System Type"

choice
	prompt "ARM system type"
	default ARCH_VERSATILE

config ARCH_AAEC2000
	bool "Agilent AAEC-2000 based"
	select ARM_AMBA
	help
	  This enables support for systems based on the Agilent AAEC-2000

config ARCH_INTEGRATOR
	bool "ARM Ltd. Integrator family"
	select ARM_AMBA
	select ICST525
	help
	  Support for ARM's Integrator platform.

config ARCH_REALVIEW
	bool "ARM Ltd. RealView family"
	select ARM_AMBA
	select ICST307
	help
	  This enables support for ARM Ltd RealView boards.

config ARCH_VERSATILE
	bool "ARM Ltd. Versatile family"
	select ARM_AMBA
	select ARM_VIC
	select ICST307
	help
	  This enables support for ARM Ltd Versatile board.

config ARCH_AT91
	bool "Atmel AT91"
	help
	  This enables support for systems based on the Atmel AT91RM9200
	  and AT91SAM9xxx processors.

config ARCH_CLPS7500
	bool "Cirrus CL-PS7500FE"
	select TIMER_ACORN
	select ISA
	help
	  Support for the Cirrus Logic PS7500FE system-on-a-chip.

config ARCH_CLPS711X
	bool "Cirrus Logic CLPS711x/EP721x-based"
	help
	  Support for Cirrus Logic 711x/721x based boards.

config ARCH_CO285
	bool "Co-EBSA285"
	select FOOTBRIDGE
	select FOOTBRIDGE_ADDIN
	help
	  Support for Intel's EBSA285 companion chip.

config ARCH_EBSA110
	bool "EBSA-110"
	select ISA
	help
	  This is an evaluation board for the StrongARM processor available
	  from Digital. It has limited hardware on-board, including an
	  Ethernet interface, two PCMCIA sockets, two serial ports and a
	  parallel port.

config ARCH_EP93XX
	bool "EP93xx-based"
	select ARM_AMBA
	select ARM_VIC
	help
	  This enables support for the Cirrus EP93xx series of CPUs.

config ARCH_FOOTBRIDGE
	bool "FootBridge"
	select FOOTBRIDGE
	help
	  Support for systems based on the DC21285 companion chip
	  ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.

config ARCH_NETX
	bool "Hilscher NetX based"
	select ARM_VIC
	help
	  This enables support for systems based on the Hilscher NetX Soc

config ARCH_H720X
	bool "Hynix HMS720x-based"
	select ISA_DMA_API
	help
	  This enables support for systems based on the Hynix HMS720x

config ARCH_IMX
	bool "IMX"
	help
	  Support for Motorola's i.MX family of processors (MX1, MXL).

config ARCH_IOP3XX
	bool "IOP3xx-based"
	depends on MMU
	select PCI
	help
	  Support for Intel's IOP3XX (XScale) family of processors.

config ARCH_IXP4XX
	bool "IXP4xx-based"
	depends on MMU
	help
	  Support for Intel's IXP4XX (XScale) family of processors.

config ARCH_IXP2000
	bool "IXP2400/2800-based"
	depends on MMU
	select PCI
	help
	  Support for Intel's IXP2400/2800 (XScale) family of processors.

config ARCH_IXP23XX
 	bool "IXP23XX-based"
	depends on MMU
 	select PCI
	help
	  Support for Intel's IXP23xx (XScale) family of processors.

config ARCH_L7200
	bool "LinkUp-L7200"
	select FIQ
	help
	  Say Y here if you intend to run this kernel on a LinkUp Systems
	  L7200 Software Development Board which uses an ARM720T processor.
	  Information on this board can be obtained at:

	  <http://www.linkupsys.com/>

	  If you have any questions or comments about the Linux kernel port
	  to this board, send e-mail to <sjhill@cotw.com>.

config ARCH_PNX4008
	bool "Philips Nexperia PNX4008 Mobile"
	help
	  This enables support for Philips PNX4008 mobile platform.

config ARCH_PXA
	bool "PXA2xx-based"
	depends on MMU
	select ARCH_MTD_XIP
	help
	  Support for Intel's PXA2XX processor line.

config ARCH_RPC
	bool "RiscPC"
	select ARCH_ACORN
	select FIQ
	select TIMER_ACORN
	select ARCH_MAY_HAVE_PC_FDC
	select ISA_DMA_API
	help
	  On the Acorn Risc-PC, Linux can support the internal IDE disk and
	  CD-ROM interface, serial and parallel port, and the floppy drive.

config ARCH_SA1100
	bool "SA1100-based"
	select ISA
	select ARCH_DISCONTIGMEM_ENABLE
	select ARCH_MTD_XIP
	help
	  Support for StrongARM 11x0 based boards.

config ARCH_S3C2410
	bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442"
	help
	  Samsung S3C2410X CPU based systems, such as the Simtec Electronics
	  BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
	  the Samsung SMDK2410 development board (and derivatives).

config ARCH_SHARK
	bool "Shark"
	select ISA
	select ISA_DMA
	select PCI
	help
	  Support for the StrongARM based Digital DNARD machine, also known
	  as "Shark" (<http://www.shark-linux.de/shark.html>).

config ARCH_LH7A40X
	bool "Sharp LH7A40X"
	help
	  Say Y here for systems based on one of the Sharp LH7A40X
	  System on a Chip processors.  These CPUs include an ARM922T
	  core with a wide array of integrated devices for
	  hand-held and low-power applications.

config ARCH_OMAP
	bool "TI OMAP"
	help
	  Support for TI's OMAP platform (OMAP1 and OMAP2).

endchoice

source "arch/arm/mach-clps711x/Kconfig"

source "arch/arm/mach-ep93xx/Kconfig"

source "arch/arm/mach-footbridge/Kconfig"

source "arch/arm/mach-integrator/Kconfig"

source "arch/arm/mach-iop3xx/Kconfig"

source "arch/arm/mach-ixp4xx/Kconfig"

source "arch/arm/mach-ixp2000/Kconfig"

source "arch/arm/mach-ixp23xx/Kconfig"

source "arch/arm/mach-pxa/Kconfig"

source "arch/arm/mach-sa1100/Kconfig"

source "arch/arm/plat-omap/Kconfig"

source "arch/arm/mach-omap1/Kconfig"

source "arch/arm/mach-omap2/Kconfig"

source "arch/arm/mach-s3c2410/Kconfig"

source "arch/arm/mach-lh7a40x/Kconfig"

source "arch/arm/mach-imx/Kconfig"

source "arch/arm/mach-h720x/Kconfig"

source "arch/arm/mach-versatile/Kconfig"

source "arch/arm/mach-aaec2000/Kconfig"

source "arch/arm/mach-realview/Kconfig"

source "arch/arm/mach-at91rm9200/Kconfig"

source "arch/arm/mach-netx/Kconfig"

# Definitions to make life easier
config ARCH_ACORN
	bool

source arch/arm/mm/Kconfig

#  bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
config XSCALE_PMU
	bool
	depends on CPU_XSCALE && !XSCALE_PMU_TIMER
	default y

if !MMU
source "arch/arm/Kconfig-nommu"
endif

endmenu

source "arch/arm/common/Kconfig"

config FORCE_MAX_ZONEORDER
	int
	depends on SA1111
	default "9"

menu "Bus support"

config ARM_AMBA
	bool

config ISA
	bool
	help
	  Find out whether you have ISA slots on your motherboard.  ISA is the
	  name of a bus system, i.e. the way the CPU talks to the other stuff
	  inside your box.  Other bus systems are PCI, EISA, MicroChannel
	  (MCA) or VESA.  ISA is an older system, now being displaced by PCI;
	  newer boards don't support it.  If you have ISA, say Y, otherwise N.

# Select ISA DMA controller support
config ISA_DMA
	bool
	select ISA_DMA_API

# Select ISA DMA interface
config ISA_DMA_API
	bool

config PCI
	bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX
	help
	  Find out whether you have a PCI motherboard. PCI is the name of a
	  bus system, i.e. the way the CPU talks to the other stuff inside
	  your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
	  VESA. If you have PCI, say Y, otherwise N.

	  The PCI-HOWTO, available from
	  <http://www.tldp.org/docs.html#howto>, contains valuable
	  information about which PCI hardware does work under Linux and which
	  doesn't.

# Select the host bridge type
config PCI_HOST_VIA82C505
	bool
	depends on PCI && ARCH_SHARK
	default y

source "drivers/pci/Kconfig"

source "drivers/pcmcia/Kconfig"

endmenu

menu "Kernel Features"

config SMP
	bool "Symmetric Multi-Processing (EXPERIMENTAL)"
	depends on EXPERIMENTAL && REALVIEW_MPCORE
	help
	  This enables support for systems with more than one CPU. If you have
	  a system with only one CPU, like most personal computers, say N. If
	  you have a system with more than one CPU, say Y.

	  If you say N here, the kernel will run on single and multiprocessor
	  machines, but will use only one CPU of a multiprocessor machine. If
	  you say Y here, the kernel will run on many, but not all, single
	  processor machines. On a single processor machine, the kernel will
	  run faster if you say N here.

	  See also the <file:Documentation/smp.txt>,
	  <file:Documentation/i386/IO-APIC.txt>,
	  <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
	  <http://www.linuxdoc.org/docs.html#howto>.

	  If you don't know what to do here, say N.

config NR_CPUS
	int "Maximum number of CPUs (2-32)"
	range 2 32
	depends on SMP
	default "4"

config HOTPLUG_CPU
	bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
	depends on SMP && HOTPLUG && EXPERIMENTAL
	help
	  Say Y here to experiment with turning CPUs off and on.  CPUs
	  can be controlled through /sys/devices/system/cpu.

config LOCAL_TIMERS
	bool "Use local timer interrupts"
	depends on SMP && REALVIEW_MPCORE
	default y
	help
	  Enable support for local timers on SMP platforms, rather then the
	  legacy IPI broadcast method.  Local timers allows the system
	  accounting to be spread across the timer interval, preventing a
	  "thundering herd" at every timer tick.

config PREEMPT
	bool "Preemptible Kernel (EXPERIMENTAL)"
	depends on EXPERIMENTAL
	help
	  This option reduces the latency of the kernel when reacting to
	  real-time or interactive events by allowing a low priority process to
	  be preempted even if it is in kernel mode executing a system call.
	  This allows applications to run more reliably even when the system is
	  under load.

	  Say Y here if you are building a kernel for a desktop, embedded
	  or real-time system.  Say N if you are unsure.

config NO_IDLE_HZ
	bool "Dynamic tick timer"
	help
	  Select this option if you want to disable continuous timer ticks
	  and have them programmed to occur as required. This option saves
	  power as the system can remain in idle state for longer.

	  By default dynamic tick is disabled during the boot, and can be
	  manually enabled with:

	    echo 1 > /sys/devices/system/timer/timer0/dyn_tick

	  Alternatively, if you want dynamic tick automatically enabled
	  during boot, pass "dyntick=enable" via the kernel command string.

	  Please note that dynamic tick may affect the accuracy of
	  timekeeping on some platforms depending on the implementation.
	  Currently at least OMAP, PXA2xx and SA11x0 platforms are known
	  to have accurate timekeeping with dynamic tick.

config HZ
	int
	default 128 if ARCH_L7200
	default 200 if ARCH_EBSA110 || ARCH_S3C2410
	default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
	default 100

config AEABI
	bool "Use the ARM EABI to compile the kernel"
	help
	  This option allows for the kernel to be compiled using the latest
	  ARM ABI (aka EABI).  This is only useful if you are using a user
	  space environment that is also compiled with EABI.

	  Since there are major incompatibilities between the legacy ABI and
	  EABI, especially with regard to structure member alignment, this
	  option also changes the kernel syscall calling convention to
	  disambiguate both ABIs and allow for backward compatibility support
	  (selected with CONFIG_OABI_COMPAT).

	  To use this you need GCC version 4.0.0 or later.

config OABI_COMPAT
	bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
	depends on AEABI && EXPERIMENTAL
	default y
	help
	  This option preserves the old syscall interface along with the
	  new (ARM EABI) one. It also provides a compatibility layer to
	  intercept syscalls that have structure arguments which layout
	  in memory differs between the legacy ABI and the new ARM EABI
	  (only for non "thumb" binaries). This option adds a tiny
	  overhead to all syscalls and produces a slightly larger kernel.
	  If you know you'll be using only pure EABI user space then you
	  can say N here. If this option is not selected and you attempt
	  to execute a legacy ABI binary then the result will be
	  UNPREDICTABLE (in fact it can be predicted that it won't work
	  at all). If in doubt say Y.

config ARCH_DISCONTIGMEM_ENABLE
	bool
	default (ARCH_LH7A40X && !LH7A40X_CONTIGMEM)
	help
	  Say Y to support efficient handling of discontiguous physical memory,
	  for architectures which are either NUMA (Non-Uniform Memory Access)
	  or have huge holes in the physical address space for other reasons.
	  See <file:Documentation/vm/numa> for more.

config NODES_SHIFT
	int
	default "4" if ARCH_LH7A40X
	default "2"
	depends on NEED_MULTIPLE_NODES

source "mm/Kconfig"

config LEDS
	bool "Timer and CPU usage LEDs"
	depends on ARCH_CDB89712 || ARCH_CO285 || ARCH_EBSA110 || \
		   ARCH_EBSA285 || ARCH_IMX || ARCH_INTEGRATOR || \
		   ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
		   ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
		   ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Commit	Line	Data
1da177e4 LT	1	#
	2	# For a description of the syntax of this configuration file,
	3	# see Documentation/kbuild/kconfig-language.txt.
	4	#
	5
	6	mainmenu "Linux Kernel Configuration"
	7
	8	config ARM
	9	bool
	10	default y
12b824fb	11	select RTC_LIB
1da177e4 LT	12	help
1da177e4 LT	13	The ARM series is a line of low-power-consumption RISC chip designs
f6c8965a	14	licensed by ARM Ltd and targeted at embedded applications and
1da177e4	15	handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
f6c8965a	16	manufactured, but legacy ARM-based PC hardware remains popular in
1da177e4 LT	17	Europe. There is an ARM Linux project with a web page at
	18	<http://www.arm.linux.org.uk/>.
	19
	20	config MMU
	21	bool
	22	default y
	23
	24	config EISA
	25	bool
	26	---help---
	27	The Extended Industry Standard Architecture (EISA) bus was
	28	developed as an open alternative to the IBM MicroChannel bus.
	29
	30	The EISA bus provided some of the features of the IBM MicroChannel
	31	bus while maintaining backward compatibility with cards made for
	32	the older ISA bus. The EISA bus saw limited use between 1988 and
	33	1995 when it was made obsolete by the PCI bus.
	34
	35	Say Y here if you are building a kernel for an EISA-based machine.
	36
	37	Otherwise, say N.
	38
	39	config SBUS
	40	bool
	41
	42	config MCA
	43	bool
	44	help
	45	MicroChannel Architecture is found in some IBM PS/2 machines and
	46	laptops. It is a bus system similar to PCI or ISA. See
	47	<file:Documentation/mca.txt> (and especially the web page given
	48	there) before attempting to build an MCA bus kernel.
	49
4a2581a0 TG	50	config GENERIC_HARDIRQS
	51	bool
	52	default y
	53
7ad1bcb2 RK	54	config TRACE_IRQFLAGS_SUPPORT
	55	bool
	56	default y
	57
4a2581a0 TG	58	config HARDIRQS_SW_RESEND
	59	bool
	60	default y
	61
	62	config GENERIC_IRQ_PROBE
	63	bool
	64	default y
	65
1da177e4 LT	66	config RWSEM_GENERIC_SPINLOCK
	67	bool
	68	default y
	69
	70	config RWSEM_XCHGADD_ALGORITHM
	71	bool
	72
b89c3b16 AM	73	config GENERIC_HWEIGHT
	74	bool
	75	default y
	76
1da177e4 LT	77	config GENERIC_CALIBRATE_DELAY
	78	bool
	79	default y
	80
	81	config GENERIC_BUST_SPINLOCK
	82	bool
	83
a08b6b79 AV	84	config ARCH_MAY_HAVE_PC_FDC
	85	bool
	86
1da177e4 LT	87	config GENERIC_ISA_DMA
	88	bool
	89
1da177e4 LT	90	config FIQ
	91	bool
	92
034d2f5a AV	93	config ARCH_MTD_XIP
	94	bool
	95
c760fc19 HC	96	config VECTORS_BASE
	97	hex
	98	default 0xffff0000 if MMU
	99	default DRAM_BASE if REMAP_VECTORS_TO_RAM
	100	default 0x00000000
	101	help
	102	The base address of exception vectors.
	103
1da177e4 LT	104	source "init/Kconfig"
	105
	106	menu "System Type"
	107
	108	choice
	109	prompt "ARM system type"
6a0e2430	110	default ARCH_VERSATILE
1da177e4	111
4af6fee1 DS	112	config ARCH_AAEC2000
	113	bool "Agilent AAEC-2000 based"
	114	select ARM_AMBA
	115	help
	116	This enables support for systems based on the Agilent AAEC-2000
	117
	118	config ARCH_INTEGRATOR
	119	bool "ARM Ltd. Integrator family"
	120	select ARM_AMBA
	121	select ICST525
	122	help
	123	Support for ARM's Integrator platform.
	124
	125	config ARCH_REALVIEW
	126	bool "ARM Ltd. RealView family"
	127	select ARM_AMBA
	128	select ICST307
	129	help
	130	This enables support for ARM Ltd RealView boards.
	131
	132	config ARCH_VERSATILE
	133	bool "ARM Ltd. Versatile family"
	134	select ARM_AMBA
	135	select ARM_VIC
	136	select ICST307
	137	help
	138	This enables support for ARM Ltd Versatile board.
	139
8fc5ffa0 AV	140	config ARCH_AT91
8fc5ffa0 AV	141	bool "Atmel AT91"
4af6fee1	142	help
8fc5ffa0 AV	143	This enables support for systems based on the Atmel AT91RM9200
8fc5ffa0 AV	144	and AT91SAM9xxx processors.
4af6fee1	145
1da177e4	146	config ARCH_CLPS7500
4af6fee1	147	bool "Cirrus CL-PS7500FE"
1da177e4	148	select TIMER_ACORN
f7e68bbf	149	select ISA
f999b8bd MM	150	help
f999b8bd MM	151	Support for the Cirrus Logic PS7500FE system-on-a-chip.
1da177e4 LT	152
1da177e4 LT	153	config ARCH_CLPS711X
4af6fee1	154	bool "Cirrus Logic CLPS711x/EP721x-based"
f999b8bd MM	155	help
f999b8bd MM	156	Support for Cirrus Logic 711x/721x based boards.
1da177e4 LT	157
	158	config ARCH_CO285
	159	bool "Co-EBSA285"
	160	select FOOTBRIDGE
	161	select FOOTBRIDGE_ADDIN
f999b8bd MM	162	help
f999b8bd MM	163	Support for Intel's EBSA285 companion chip.
1da177e4 LT	164
	165	config ARCH_EBSA110
	166	bool "EBSA-110"
f7e68bbf	167	select ISA
1da177e4 LT	168	help
1da177e4 LT	169	This is an evaluation board for the StrongARM processor available
f6c8965a	170	from Digital. It has limited hardware on-board, including an
1da177e4 LT	171	Ethernet interface, two PCMCIA sockets, two serial ports and a
	172	parallel port.
	173
e7736d47 LB	174	config ARCH_EP93XX
	175	bool "EP93xx-based"
	176	select ARM_AMBA
	177	select ARM_VIC
	178	help
	179	This enables support for the Cirrus EP93xx series of CPUs.
	180
1da177e4 LT	181	config ARCH_FOOTBRIDGE
	182	bool "FootBridge"
	183	select FOOTBRIDGE
f999b8bd MM	184	help
	185	Support for systems based on the DC21285 companion chip
	186	("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
1da177e4	187
4af6fee1 DS	188	config ARCH_NETX
	189	bool "Hilscher NetX based"
	190	select ARM_VIC
f999b8bd	191	help
4af6fee1 DS	192	This enables support for systems based on the Hilscher NetX Soc
	193
	194	config ARCH_H720X
	195	bool "Hynix HMS720x-based"
	196	select ISA_DMA_API
	197	help
	198	This enables support for systems based on the Hynix HMS720x
	199
	200	config ARCH_IMX
	201	bool "IMX"
	202	help
	203	Support for Motorola's i.MX family of processors (MX1, MXL).
1da177e4 LT	204
	205	config ARCH_IOP3XX
	206	bool "IOP3xx-based"
a4f7e763	207	depends on MMU
f7e68bbf	208	select PCI
f999b8bd MM	209	help
f999b8bd MM	210	Support for Intel's IOP3XX (XScale) family of processors.
1da177e4 LT	211
	212	config ARCH_IXP4XX
	213	bool "IXP4xx-based"
a4f7e763	214	depends on MMU
f999b8bd MM	215	help
f999b8bd MM	216	Support for Intel's IXP4XX (XScale) family of processors.
1da177e4 LT	217
	218	config ARCH_IXP2000
	219	bool "IXP2400/2800-based"
a4f7e763	220	depends on MMU
f7e68bbf	221	select PCI
f999b8bd MM	222	help
f999b8bd MM	223	Support for Intel's IXP2400/2800 (XScale) family of processors.
1da177e4	224
c4713074 LB	225	config ARCH_IXP23XX
c4713074 LB	226	bool "IXP23XX-based"
a4f7e763	227	depends on MMU
c4713074 LB	228	select PCI
	229	help
	230	Support for Intel's IXP23xx (XScale) family of processors.
	231
1da177e4 LT	232	config ARCH_L7200
	233	bool "LinkUp-L7200"
	234	select FIQ
	235	help
	236	Say Y here if you intend to run this kernel on a LinkUp Systems
	237	L7200 Software Development Board which uses an ARM720T processor.
	238	Information on this board can be obtained at:
	239
	240	<http://www.linkupsys.com/>
	241
	242	If you have any questions or comments about the Linux kernel port
	243	to this board, send e-mail to <sjhill@cotw.com>.
	244
4af6fee1 DS	245	config ARCH_PNX4008
	246	bool "Philips Nexperia PNX4008 Mobile"
	247	help
	248	This enables support for Philips PNX4008 mobile platform.
	249
1da177e4 LT	250	config ARCH_PXA
1da177e4 LT	251	bool "PXA2xx-based"
a4f7e763	252	depends on MMU
034d2f5a	253	select ARCH_MTD_XIP
f999b8bd MM	254	help
f999b8bd MM	255	Support for Intel's PXA2XX processor line.
1da177e4 LT	256
	257	config ARCH_RPC
	258	bool "RiscPC"
	259	select ARCH_ACORN
	260	select FIQ
	261	select TIMER_ACORN
a08b6b79	262	select ARCH_MAY_HAVE_PC_FDC
065909b9	263	select ISA_DMA_API
1da177e4 LT	264	help
	265	On the Acorn Risc-PC, Linux can support the internal IDE disk and
	266	CD-ROM interface, serial and parallel port, and the floppy drive.
	267
	268	config ARCH_SA1100
	269	bool "SA1100-based"
f7e68bbf	270	select ISA
3cd9e19e	271	select ARCH_DISCONTIGMEM_ENABLE
034d2f5a	272	select ARCH_MTD_XIP
f999b8bd MM	273	help
f999b8bd MM	274	Support for StrongARM 11x0 based boards.
1da177e4 LT	275
1da177e4 LT	276	config ARCH_S3C2410
cd701aa2	277	bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442"
1da177e4 LT	278	help
	279	Samsung S3C2410X CPU based systems, such as the Simtec Electronics
	280	BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
f6c8965a	281	the Samsung SMDK2410 development board (and derivatives).
1da177e4 LT	282
	283	config ARCH_SHARK
	284	bool "Shark"
f7e68bbf RK	285	select ISA
	286	select ISA_DMA
	287	select PCI
f999b8bd MM	288	help
	289	Support for the StrongARM based Digital DNARD machine, also known
	290	as "Shark" (<http://www.shark-linux.de/shark.html>).
1da177e4 LT	291
	292	config ARCH_LH7A40X
	293	bool "Sharp LH7A40X"
	294	help
	295	Say Y here for systems based on one of the Sharp LH7A40X
	296	System on a Chip processors. These CPUs include an ARM922T
	297	core with a wide array of integrated devices for
	298	hand-held and low-power applications.
	299
	300	config ARCH_OMAP
	301	bool "TI OMAP"
f999b8bd MM	302	help
f999b8bd MM	303	Support for TI's OMAP platform (OMAP1 and OMAP2).
1da177e4	304
1da177e4 LT	305	endchoice
	306
	307	source "arch/arm/mach-clps711x/Kconfig"
	308
e7736d47 LB	309	source "arch/arm/mach-ep93xx/Kconfig"
e7736d47 LB	310
1da177e4 LT	311	source "arch/arm/mach-footbridge/Kconfig"
	312
	313	source "arch/arm/mach-integrator/Kconfig"
	314
	315	source "arch/arm/mach-iop3xx/Kconfig"
	316
	317	source "arch/arm/mach-ixp4xx/Kconfig"
	318
	319	source "arch/arm/mach-ixp2000/Kconfig"
	320
c4713074 LB	321	source "arch/arm/mach-ixp23xx/Kconfig"
c4713074 LB	322
1da177e4 LT	323	source "arch/arm/mach-pxa/Kconfig"
	324
	325	source "arch/arm/mach-sa1100/Kconfig"
	326
d48af15e TL	327	source "arch/arm/plat-omap/Kconfig"
	328
	329	source "arch/arm/mach-omap1/Kconfig"
1da177e4	330
1dbae815 TL	331	source "arch/arm/mach-omap2/Kconfig"
1dbae815 TL	332
1da177e4 LT	333	source "arch/arm/mach-s3c2410/Kconfig"
	334
	335	source "arch/arm/mach-lh7a40x/Kconfig"
	336
	337	source "arch/arm/mach-imx/Kconfig"
	338
	339	source "arch/arm/mach-h720x/Kconfig"
	340
	341	source "arch/arm/mach-versatile/Kconfig"
	342
038c5b60 BN	343	source "arch/arm/mach-aaec2000/Kconfig"
038c5b60 BN	344
8ad68bbf CM	345	source "arch/arm/mach-realview/Kconfig"
8ad68bbf CM	346
73a59c1c SP	347	source "arch/arm/mach-at91rm9200/Kconfig"
73a59c1c SP	348
bb6d8c88 SH	349	source "arch/arm/mach-netx/Kconfig"
bb6d8c88 SH	350
1da177e4 LT	351	# Definitions to make life easier
	352	config ARCH_ACORN
	353	bool
	354
	355	source arch/arm/mm/Kconfig
	356
	357	# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
	358	config XSCALE_PMU
	359	bool
	360	depends on CPU_XSCALE && !XSCALE_PMU_TIMER
	361	default y
	362
3b93e7b0 HC	363	if !MMU
	364	source "arch/arm/Kconfig-nommu"
	365	endif
	366
1da177e4 LT	367	endmenu
	368
	369	source "arch/arm/common/Kconfig"
	370
	371	config FORCE_MAX_ZONEORDER
	372	int
	373	depends on SA1111
	374	default "9"
	375
	376	menu "Bus support"
	377
	378	config ARM_AMBA
	379	bool
	380
	381	config ISA
	382	bool
1da177e4 LT	383	help
	384	Find out whether you have ISA slots on your motherboard. ISA is the
	385	name of a bus system, i.e. the way the CPU talks to the other stuff
	386	inside your box. Other bus systems are PCI, EISA, MicroChannel
	387	(MCA) or VESA. ISA is an older system, now being displaced by PCI;
	388	newer boards don't support it. If you have ISA, say Y, otherwise N.
	389
065909b9	390	# Select ISA DMA controller support
1da177e4 LT	391	config ISA_DMA
1da177e4 LT	392	bool
065909b9	393	select ISA_DMA_API
1da177e4	394
065909b9	395	# Select ISA DMA interface
5cae841b AV	396	config ISA_DMA_API
5cae841b AV	397	bool
5cae841b	398
1da177e4	399	config PCI
68939121	400	bool "PCI support" if ARCH_INTEGRATOR_AP \|\| ARCH_VERSATILE_PB \|\| ARCH_IXP4XX
1da177e4 LT	401	help
	402	Find out whether you have a PCI motherboard. PCI is the name of a
	403	bus system, i.e. the way the CPU talks to the other stuff inside
	404	your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
	405	VESA. If you have PCI, say Y, otherwise N.
	406
	407	The PCI-HOWTO, available from
	408	<http://www.tldp.org/docs.html#howto>, contains valuable
	409	information about which PCI hardware does work under Linux and which
	410	doesn't.
	411
	412	# Select the host bridge type
	413	config PCI_HOST_VIA82C505
	414	bool
	415	depends on PCI && ARCH_SHARK
	416	default y
	417
	418	source "drivers/pci/Kconfig"
	419
	420	source "drivers/pcmcia/Kconfig"
	421
	422	endmenu
	423
	424	menu "Kernel Features"
	425
	426	config SMP
	427	bool "Symmetric Multi-Processing (EXPERIMENTAL)"
f6db449c	428	depends on EXPERIMENTAL && REALVIEW_MPCORE
1da177e4 LT	429	help
	430	This enables support for systems with more than one CPU. If you have
	431	a system with only one CPU, like most personal computers, say N. If
	432	you have a system with more than one CPU, say Y.
	433
	434	If you say N here, the kernel will run on single and multiprocessor
	435	machines, but will use only one CPU of a multiprocessor machine. If
	436	you say Y here, the kernel will run on many, but not all, single
	437	processor machines. On a single processor machine, the kernel will
	438	run faster if you say N here.
	439
12c62c2e AO	440	See also the <file:Documentation/smp.txt>,
12c62c2e AO	441	<file:Documentation/i386/IO-APIC.txt>,
1da177e4 LT	442	<file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
	443	<http://www.linuxdoc.org/docs.html#howto>.
	444
	445	If you don't know what to do here, say N.
	446
	447	config NR_CPUS
	448	int "Maximum number of CPUs (2-32)"
	449	range 2 32
	450	depends on SMP
	451	default "4"
	452
a054a811 RK	453	config HOTPLUG_CPU
	454	bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
	455	depends on SMP && HOTPLUG && EXPERIMENTAL
	456	help
	457	Say Y here to experiment with turning CPUs off and on. CPUs
	458	can be controlled through /sys/devices/system/cpu.
	459
37ee16ae RK	460	config LOCAL_TIMERS
37ee16ae RK	461	bool "Use local timer interrupts"
2a98beb6	462	depends on SMP && REALVIEW_MPCORE
37ee16ae RK	463	default y
	464	help
	465	Enable support for local timers on SMP platforms, rather then the
	466	legacy IPI broadcast method. Local timers allows the system
	467	accounting to be spread across the timer interval, preventing a
	468	"thundering herd" at every timer tick.
	469
1da177e4 LT	470	config PREEMPT
	471	bool "Preemptible Kernel (EXPERIMENTAL)"
	472	depends on EXPERIMENTAL
	473	help
	474	This option reduces the latency of the kernel when reacting to
	475	real-time or interactive events by allowing a low priority process to
	476	be preempted even if it is in kernel mode executing a system call.
	477	This allows applications to run more reliably even when the system is
	478	under load.
	479
	480	Say Y here if you are building a kernel for a desktop, embedded
	481	or real-time system. Say N if you are unsure.
	482
8749af68 RK	483	config NO_IDLE_HZ
	484	bool "Dynamic tick timer"
	485	help
	486	Select this option if you want to disable continuous timer ticks
	487	and have them programmed to occur as required. This option saves
	488	power as the system can remain in idle state for longer.
	489
	490	By default dynamic tick is disabled during the boot, and can be
	491	manually enabled with:
	492
	493	echo 1 > /sys/devices/system/timer/timer0/dyn_tick
	494
	495	Alternatively, if you want dynamic tick automatically enabled
	496	during boot, pass "dyntick=enable" via the kernel command string.
	497
f2be64b3 TL	498	Please note that dynamic tick may affect the accuracy of
f2be64b3 TL	499	timekeeping on some platforms depending on the implementation.
569d2c34 NP	500	Currently at least OMAP, PXA2xx and SA11x0 platforms are known
569d2c34 NP	501	to have accurate timekeeping with dynamic tick.
f2be64b3	502
f8065813 RK	503	config HZ
	504	int
	505	default 128 if ARCH_L7200
	506	default 200 if ARCH_EBSA110 \|\| ARCH_S3C2410
bfe65704	507	default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
f8065813 RK	508	default 100
f8065813 RK	509
704bdda0 NP	510	config AEABI
	511	bool "Use the ARM EABI to compile the kernel"
	512	help
	513	This option allows for the kernel to be compiled using the latest
	514	ARM ABI (aka EABI). This is only useful if you are using a user
	515	space environment that is also compiled with EABI.
	516
	517	Since there are major incompatibilities between the legacy ABI and
	518	EABI, especially with regard to structure member alignment, this
	519	option also changes the kernel syscall calling convention to
	520	disambiguate both ABIs and allow for backward compatibility support
	521	(selected with CONFIG_OABI_COMPAT).
	522
	523	To use this you need GCC version 4.0.0 or later.
	524
6c90c872	525	config OABI_COMPAT
a73a3ff1	526	bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
61c484d4	527	depends on AEABI && EXPERIMENTAL
6c90c872 NP	528	default y
	529	help
	530	This option preserves the old syscall interface along with the
	531	new (ARM EABI) one. It also provides a compatibility layer to
	532	intercept syscalls that have structure arguments which layout
	533	in memory differs between the legacy ABI and the new ARM EABI
	534	(only for non "thumb" binaries). This option adds a tiny
	535	overhead to all syscalls and produces a slightly larger kernel.
	536	If you know you'll be using only pure EABI user space then you
	537	can say N here. If this option is not selected and you attempt
	538	to execute a legacy ABI binary then the result will be
	539	UNPREDICTABLE (in fact it can be predicted that it won't work
	540	at all). If in doubt say Y.
	541
3f22ab27	542	config ARCH_DISCONTIGMEM_ENABLE
1da177e4	543	bool
f7e68bbf	544	default (ARCH_LH7A40X && !LH7A40X_CONTIGMEM)
1da177e4 LT	545	help
	546	Say Y to support efficient handling of discontiguous physical memory,
	547	for architectures which are either NUMA (Non-Uniform Memory Access)
	548	or have huge holes in the physical address space for other reasons.
	549	See <file:Documentation/vm/numa> for more.
	550
c80d79d7 YG	551	config NODES_SHIFT
	552	int
	553	default "4" if ARCH_LH7A40X
	554	default "2"
	555	depends on NEED_MULTIPLE_NODES
	556
3f22ab27 DH	557	source "mm/Kconfig"
3f22ab27 DH	558
1da177e4 LT	559	config LEDS
	560	bool "Timer and CPU usage LEDs"
	561	depends on ARCH_CDB89712 \|\| ARCH_CO285 \|\| ARCH_EBSA110 \|\| \
	562	ARCH_EBSA285 \|\| ARCH_IMX \|\| ARCH_INTEGRATOR \|\| \
	563	ARCH_LUBBOCK \|\| MACH_MAINSTONE \|\| ARCH_NETWINDER \|\| \
	564	ARCH_OMAP \|\| ARCH_P720T \|\| ARCH_PXA_IDP \|\| \
73a59c1c	565	ARCH_SA1100 \|\| ARCH_SHARK \|\| ARCH_VERSATILE \|\| \